Igama elihlanganisiweyo le-hydroxyethyl cellulose

Igama elihlanganisiweyo le-hydroxyethyl cellulose

Igama elihlanganisiweyo le-Hydroxyethyl Cellulose (HEC) libonisa ubume bekhemikhali kunye nohlengahlengiso olwenziwe kwiselulosi yendalo.I-HEC yi-ether ye-cellulose, oku kuthetha ukuba iphuma kwi-cellulose ngokusebenzisa inkqubo yekhemikhali eyaziwa ngokuba yi-etherification.Ngokukodwa, amaqela e-hydroxyethyl angeniswa kwi-cellulose backbone.

I-IUPAC (iManyano yaMazwe ngaMazwe yeChemistry ePure kunye neApplied) yeHydroxyethyl Cellulose iya kusekelwa kulwakhiwo lweselulosi kunye namaqela adityanisiweyo e-hydroxyethyl.Ubume bemichiza ye-cellulose yi-polysaccharide eyinkimbinkimbi ehlanganiswe ngokuphindaphindiweyo kweeyunithi ze-glucose.

Ubume bemichiza yeHydroxyethyl Cellulose inokumelwa ngolu hlobo:

n |[O-CH2-CH2-O-]x |OH

Kulo mboniso:

  • Iyunithi ye- [-O-CH2-CH2-O-] imele i-cellulose backbone.
  • Amaqela [-CH2-CH2-OH] amele amaqela e-hydroxyethyl aziswa nge-etherification.

Ukunikezelwa kobunzima besakhiwo se-cellulose kunye neendawo ezithile ze-hydroxyethylation, ukubonelela ngegama le-IUPAC elicwangcisiweyo le-HEC linokuba ngumngeni.Igama lihlala libhekisa kulungiso olwenziwe kwiselulosi kunegama elithile le-IUPAC.

Igama elisetyenziswa ngokuqhelekileyo elithi "Hydroxyethyl Cellulose" libonisa zombini umthombo (cellulose) kunye nokuguqulwa (amaqela e-hydroxyethyl) ngendlela ecacileyo nechazayo.


Ixesha lokuposa: Jan-01-2024